Copier V prints at a rate of 81 letters in every 3 minutes and Copier W prints at a rate of 132 letters in every 4 minutes. At 2 p.m., both copiers started printing. After a while, Copier V stopped printing for some time as the ink cartridges were being changed before it continued to print again. Copier W continued printing during this time. At 4 p.m., the total number of letters printed during the past two hours was 8844. Express the number of letters printed by Copier V as a percentage of the total number of letters printed by both copiers. Round off your answer to 2 decimal places.
Number of letters Copier V prints per min = 81 ÷ 3 = 27
Number of letters Copier W prints per min = 132 ÷ 4 = 33

From 2 p.m. to 4 p.m. = 2 h
1 h = 60 min
2 h = 120 min

Number of letters printed by Copier W in 2 h
= 120 x 33
= 3960

Number of letters printed by Copier V in 2 h
= 8844 - 3960
= 4884

Percentage of the number of letters that Copier V printed over the total number of letters printed
= ⁴⁸⁸⁴₈₈₄₄ x 100%
≈ 55.22%

Answer(s): 55.22%